Film blowing machine transmission structure convenient to clean

The utility model relates to the technical field of film blowing machine transmission structures, and discloses a film blowing machine transmission structure convenient to clean, which comprises a main frame and a traction device, the traction device comprises a driving motor and a winding traction roller rotationally mounted on the main frame, and a driven chain wheel is fixed at one end of the winding traction roller. A driving chain wheel is fixed to a power output shaft of the driving motor, a chain is connected between the driving chain wheel and the driven chain wheel, two guide chain wheels are further connected to the chain in a meshed mode, a movable chain wheel is further arranged between the two guide chain wheels, the movable chain wheel is connected with the portion, between the two guide chain wheels, of the chain in a meshed mode, and a tension sensor is further connected to the chain. The tension of the chain can be released by adjusting the position of the movable chain wheel through the scre